In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.

Example Input: Question: What country did Commandino study in? Passage:Born in Urbino, he studied at Padua and at Ferrara, where he received his doctorate in medicine. He was most famous for his central role as translator of works of ancient mathematicians. In this, his sources were primarily written in Greek and secondarily in Arabic, while his translations were primarily in Latin and secondarily in Italian. He was responsible for the publication of many treatises of Archimedes. He also translated the works of Aristarchus of Samos (On the sizes and distances of the Sun and the Moon), Pappus of Alexandria (Mathematical collection), Hero of Alexandria (Pneumatics), Ptolemy of Alexandria (Planisphere and Analemma), Apollonius of Perga (Conics) and Euclid of Alexandria (Elements). Among his pupils was Guidobaldo del Monte and Bernardino Baldi. Commandino maintained a correspondence with the astronomer Francesco Maurolico. The proposition known as Commandino's theorem first appears in his work on centers of gravity.

Example Output: b

Example Input: Question: How many viruses are recognized as the type of virus that poliovirus is? Passage:Poliovirus is an enterovirus. Infection occurs via the fecal–oral route, meaning that one ingests the virus and viral replication occurs in the alimentary tract. Virus is shed in the feces of infected individuals. In 95% of cases only a primary, transient presence of viremia (virus in the bloodstream) occurs, and the poliovirus infection is asymptomatic. In about 5% of cases, the virus spreads and replicates in other sites such as brown fat, reticuloendothelial tissue, and muscle. The sustained viral replication causes secondary viremia and leads to the development of minor symptoms such as fever, headache, and sore throat. Paralytic poliomyelitis occurs in less than 1% of poliovirus infections. Paralytic disease occurs when the virus enters the central nervous system (CNS) and replicates in motor neurons within the spinal cord, brain stem, or motor cortex, resulting in the selective destruction of motor neurons leading to temporary or permanent paralysis. In rare cases, paralytic poliomyelitis leads to respiratory arrest and death. In cases of paralytic disease, muscle pain and spasms are frequently observed prior to onset of weakness and paralysis. Paralysis typically persists from days to weeks prior to recovery.

Example Output: b

Example Input: Question: What U.S. state was "Dirty Dancer" recorded in? Passage:"Dirty Dancer" was written by Enrique Iglesias, RedOne, Evan Bogart, Erika Nuri and David Quiñones, and was produced by RedOne. It was recorded at South Point Studios, Miami. "Dirty Dancer" is a dance-pop song with some influences of electropop, dubstep, and rave music. According to Adam Graham of MTV News, "Dirty Dancer" is about "a comely-yet-dangerous female"; its hook features the lyrics "She's a dirty, dirty dancer/ Dirty, dirty dancer/ Never ever lonely". At the beginning on the song, Usher dedicates it to "the dirty girls all around the world". Iglesias and Usher exchange verses before, on the single remix, Wayne gives his rap verse, which makes a reference to actor Eddie Murphy. "Dirty Dancer" was included on Iglesias' sixth studio album, Euphoria, and Usher's EP Versus. "Dirty Dancer" was sent to Australian contemporary hit radio (CHR) and nights radio on 9 May, while the single remix was sent to US CHR 10 May. The single was released as a music download in North America on 12 June 2011, and was released in Europe and Oceania on 19 June.

Example Output:
b

